Dear SM_AP1,
For sure it would be, because it is important to understand how the metric is calculated.
I have used the same metric along with the total seconds spent (Screen grab below):
If you see, the total seconds spent is same, but the Average Time Spent is different because the denominator is based on the dimensions. Checkout the link to understand the calculation in detail.
Thank You, Pratheep Arun Raj B | Xerago | Terryn Winter Analytics